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Effects of offshore wind farms on marine wildlife-a generalized impact assessment

Författare och institution:
L. Bergstrom (-); L. Kautsky (-); T. Malm (-); Rutger Rosenberg (Institutionen för biologi och miljövetenskap); M Wahlberg (-); N. A. Capetillo (-); D. Wilhelmsson (-); Estuarine Ld Ah (-)
Publicerad i:
Environmental Research Letters, 9 ( 3 )
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
Marine management plans over the world express high expectations to the development of offshore wind energy. This would obviously contribute to renewable energy production, but potential conflicts with other usages of the marine landscape, as well as conservation interests, are evident. The present study synthesizes the current state of understanding on the effects of offshore wind farms on marine wildlife, in order to identify general versus local conclusions in published studies. The results were translated into a generalized impact assessment for coastal waters in Sweden, which covers a range of salinity conditions from marine to nearly fresh waters. Hence, the conclusions are potentially applicable to marine planning situations in various aquatic ecosystems. The assessment considered impact with respect to temporal and spatial extent of the pressure, effect within each ecosystem component, and level of certainty. Research on the environmental effects of offshore wind farms has gone through a rapid maturation and learning process, with the bulk of knowledge being developed within the past ten years. The studies showed a high level of consensus with respect to the construction phase, indicating that potential impacts on marine life should be carefully considered in marine spatial planning. Potential impacts during the operational phase were more locally variable, and could be either negative or positive depending on biological conditions as well as prevailing management goals. There was paucity in studies on cumulative impacts and long-term effects on the food web, as well as on combined effects with other human activities, such as the fisheries. These aspects remain key open issues for a sustainable marine spatial planning.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Geovetenskap och miljövetenskap
offshore wind farm, marine ecology, environmental impact, surveillance programme, marine spatial, LIFE-CYCLE ASSESSMENT, LONG-TERM EXPOSURE, ARTIFICIAL REEFS, NORTH-SEA, HARBOR PORPOISES, BALTIC SEA, UNDERWATER NOISE, SUSPENDED SEDIMENT, RENEWABLE ENERGY, DEMERSAL FISH, , 2008, Offshore Wind Energy: Action Needed to Deliver on the Energy Policy Objectives for 2020 and, LOVINA JJ, 1989, CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS, V30, P37
Postens nummer:
Posten skapad:
2014-06-10 11:10

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